Session duration and the VI response function: Within-session prospective and retrospective effects

Two experiments examined the effects of session duration on responding during simple variable-interval schedules. In Experiment 1, rats were exposed to a series of simple variable-interval schedules differing in both session duration (10 min or 30 min) and scheduled reinforcement rate (7.5 s, 15 s, 30 s, and 480 s). The functions relating response rate to reinforcement rate were predominantly monotonic for the short (10-min) sessions but were predominantly bitonic for the long (30-min) sessions, when data from the entire session were considered. Examination of responding within sessions suggested that differences in the whole-session data were produced by a combination of prospective processes (i.e., processes based on events scheduled to occur later in the session) and retrospective processes (i.e., processes based on events that had already occurred in the session). In Experiment 2, rats were exposed to a modified discrimination procedure in which pellet flavor (standard or banana) predicted session duration (10 min or 30 min). All rats came to respond faster during the short (10-min) sessions than during the first 10 min of the long sessions. As in Experiment 1, the results seemed to reflect the simultaneous operation of both prospective and retrospective processes. The results shed light on the recent controversy over the form of the variable-interval response function by identifying one variable (session duration) and two types of processes (prospective and retrospective) that influence responding on these schedules.     

Clinical judgment in forensic neuropsychology: A comment on the risks of claiming more than can be delivered

There is a vast and growing literature in psychology demonstrating the general limits of human judgment and clinical inference. These findings clearly apply in the new specialty of clinical neuropsychology, and there is little empirical research to support the widespread belief that judgmental accuracy correlates substantially with experience, professional stature, or reputation as a neuropsychologist. However, the demand characteristics of expert testimony in the forensic arena may encourage individual neuropsychologists to state or intimate that they have unique or special expertise in understanding brain-behavior relationships, or in predicting outcomes following cerebral insult or injury. These claims will be increasingly difficult to substantiate as attorneys become more conversant with the literature on human judgment.     

计算模型在道德认知研究中的应用

道德认知关注道德心理背后的信息加工。近年来, 研究者开始将计算模型应用于道德认知研究, 以探索道德认知如何在大脑中实现。但目前研究者对道德认知进行计算建模的研究处于起步阶段。计算模型(漂移扩散模型、效用模型、强化学习模型和分层高斯过筛器模型)在道德认知行为和生理研究上的运用量化了道德决策、道德判断和道德推理背后的认知过程和神经机制。此外, 这一新进展对理解反社会行为和精神障碍等有所助益。最后, 计算建模有待完善, 未来研究需要关注其潜在的问题。     

An overcorrection framing effect

With the “typical” attribute framing manipulation, assimilation effects have often been obtained; people often judge the attributes of a judgmental target more positively when the attributes are framed positively (e.g., 99% pure) than negatively (e.g., 1% impure). Research has not, however, explored or demonstrated the effects of correcting or overcorrecting for the frame's influence. Overcorrection framing occurs when a more positive response is produced by the negative frame. Across three experiments, overcorrection as well as typical framing effects were obtained. In Experiments 1 and 2, overcorrection effects were obtained when participants were prompted to consider complementary information and, in Experiment 3, when the frame's source was described as untrustworthy. In contrast, typical framing effects were obtained when prompts were not supplied and when the frame's source was not described as being untrustworthy. These results supported the unification model that uses a priming analysis to account for assimilation (typical framing) and contrast (overcorrection framing) effects. We discussed how overcorrection is expected with other framing manipulations, such as risky-choice framing. We provided reasons for asymmetrical correction effects and discussed implications of our analysis for holistic/analytical as well as System 1/System 2 processing styles, the influence of different amounts of cognitive resource allocations, and the possibility of a correction process involving averaging.     

Errors in subtractions: judged and observed frequencies

In a first study 10 adults, aged 24-44 years, solved all 105 subtraction problems in the form M - N = , where 0 < or = M < or = 13, 0 < or = N < or = 13 and N < or = M. Each participant solved every problem 10 times and in total there were 10 500 answers. Answers, response latencies and errors were registered. Retrospective verbal reports were also given, indicating how a solution was reached: (1) via a (conscious) reconstructive cognitive process or (2) via an (unconscious) reproductive (retrieval) process. The participants made 291 errors (2.8%) when solving the subtractions in study 1. The rate of self-correction was very high, 92%. In a second study 27 undergraduate students estimated overall error rates, including self-corrected errors for the 105 subtraction problems used in the first study. Judged and actual error rates were compared. The participants systematically underestimated error rates for error prone problems and overestimated error rates for error free problems. The participants were fairly accurate when they predicted problems that were most error prone, with a hit rate of 0.67 for the (18) problems predicted as the most error prone ones. In contrast, predictions of which problems were error free were very poor with a hit rate of only 0.20 of the problems predicted as error free really having no errors in study 1. The correlation between judged error rates and frequencies for actually made errors was 0.69 for answers belonging to reconstructive solutions. In contrast, there was no significant correlation between judged and actual error rates at all for retrieved solutions, possibly reflecting the inaccessibility to consciousness of quick retrieval processes.     

Bailing and jailing the fast and frugal way

Legal decisions such as the decision to bail upon adjourning a case have major consequences for both defendants and society. In the English system, magistrates, most of whom are lay people, are afforded considerable discretion and must work under constraints such as time pressure. Judgment analysis of the bail decision making policies of 81 magistrates from 44 courts throughout England and Wales revealed intra‐ and inter‐magistrate inconsistency in bail decisions, discrepancies between stated and elicited cue use, and high levels of post‐decisional confidence. Furthermore, magistrates' policies were better described and predicted by a fast and frugal model characterized by noncompensatory cue use, than by either of two compensatory integration models. The fast and frugal model portrays a picture of bail decision making that conflicts with the ideal practice as defined by the due process model of justice. We discuss the implications of these findings for judgment and decision making research and criminal justice policy. Copyright © 2001 John Wiley & Sons, Ltd.     

Narrators and comparators: the architecture of agentive self-awareness

This paper contrasts two approaches to agentive self-awareness: a high-level, narrative-based account, and a low-level comparator-based account. We argue that an agent’s narrative self-conception has a role to play in explaining their agentive judgments, but that agentive experiences are explained by low-level comparator mechanisms that are grounded in the very machinery responsible for action-production.     

Children's Social and Moral Reasoning About Exclusion

ABSTRACT— Developmental research on social and moral reasoning about exclusion has utilized a social-domain theory, in contrast to a global stage theory, to investigate children's evaluations of gender- and race-based peer exclusion. The social-domain model postulates that moral, social-conventional, and personal reasoning coexist in children's evaluations of inclusion and exclusion, and that the priority given to these forms of judgments varies by the age of the child, the context, and the target of exclusion. Findings from developmental intergroup research studies disconfirm a general-stage-model approach to morality in the child, and provide empirical data on the developmental origins and emergence of intergroup attitudes regarding prejudice, bias, and exclusion.     

记忆的自我参照效应

自我参照效应(self-reference effect)指的是记忆材料与自我相联系时的记忆效果显著优于其他编码条件。自我对记忆的促进作用,存在多种理论解释,最主要的有:精细加工说,组织加工说以及双过程说。自我参照效应的研究为应用脑功能成像技术对自我进行脑定位提供了一个新的视角,为情节记忆的HERA模型提供了有力的证据。目前,自我参照效应的研究同文化差异研究相结合,成为一个新的研究趋势。